Calculating machine



E. C. SCHINKE ANDMN. A. SUTHEHLAND.

CALCULATING MACHINE.

APPLICATION FILED DEc. I3. |918. IIEIIEwED FEB. 4. 192|.

Patented Aug. 23, 1921.

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CALCULATING MACAHINE.

APPLICATION FILED DEC.13| 1918. RENEWED FEB-4,1921.

1,388,379. Patented Aug. 23, 1921.

' 4 SHEETS-SHUT 2.

E '1 IIL 11 l/ VESA'.

E. C. SCHINKE AND N. A. SUTHERLAND.

CALCULATING MACHINE.

APPLICATION FILED DEC. 13. 15H8. RENEWED FEB. 4. i921.

Patented Aug. 23, 1921.

4 SHEETS-SHEET 3,

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E. C. SCHINKE AND N. A.SUTHERLAND.

CALCULATING MACHINE.

APPucATloN FILED DEC. 13. 191e. aENEwED FEB.4.1921.

1 ,388, 379. Patented lg., 1921.

.mull I l" l l In Vl CO OC UNITEDy STATES PATENT OFFICE.

EDWARD C. SCHINKE AND-NORMAN A. SUTHERLAND, 0F ST. LOUIS, ,MISSOU'RL ASSIGNORS TO TYPEWRITER CALCULATING ATTACHMENT COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

cAIlcULA'rrNe-MACHINE.

Specification of Letters Patent.

Patented Aug. S, 1921.

Application led December 13, 1918, Serial No. 266,634. Renewed February 4, 1921. Serial No. 442,594.

act description, reference being had to the accompanying drawings, forming a part of this specification.

This inventlon relates to improvements in calculating machines, and more particularly' to an accumulator for calculating machines.

The accumulator includes digit wheels ofdifferent orders, and one of the objects of the invention is to provide an eiicient transferring device, or carrying device, whereby motion is transmitted from one order to another. To accomplish this, we preferably utilize two transferring members, one of which isl adapted to occupy an idle position in the path of the other transferring member, and the invention includes eans for displacing the idle transferring member to permit independent movementof the other member.

Another object is to produce a simple and eiiicient means for-alining and locklng .the digit wheels.

A further object is to provide ca-lculating mechanism of this kind adapted to be actuated by the numeral keys and platen carriage of a typewriting machine.

IVith the foregoing and other objects in view, the invention comprises thenovel construction, combination and arrangement of parts hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention; however, itl is to bc understood that the invention comprehends changes, variations andmodifications which come within the scope of the claims hereunto appended.

Figure I is a side elevation, partly in seotion, illustratinga calculating attachment for typewriting machines equipped with de-A vices constructed inmaccordance with the present invention.

Fig. II is a detail view illustrating a cam and lever through which motion is transmitted from the numeral keys 'to a shifte located at the accumulator. y

accumulator showing the shifter whereby.

one of the transferring elements is displaced to permit independent movement of its com panion transferring element.

Fig. VIII is a rear elevation, partly in section, showing the parts at the upper portion of Fig. VII,and also showing themaster wheel.

To illustrate the invention, we have shown a calculating attachment for typewriters, adapted' for use with ordinary typewriting machines now on the market. In this machine the numbers to be added are written by the typewriter in ythe, usual manner, and the total is indicated by an accumulator. The accumulator comprises a series of digit wheels, or total wheels;y of different orders, and motion is transmitted from a master wheel to the digit wheels. Either the master wheel or the accumulator must travel step 4by step in response to thefkey operations, to

provide for the transmission of movement to v the different digit wheels. The master wheel herein shown is splined to a rotary shaft and shifted step'by step with a traveling carriage, which may be driven in unison with the platen carriage of the typewriter. The master wheel may be rotated through the medium of the numeral keys of the type- The accumulator is provided with digit wheel groups representing digits of different orders, each of said groups including an indicating wheel, or total wheel l, a-toot-hed actuating wheel 2, and an alining wheel .3. Each digit wheel group, excepting the group of the lowest order, is also provided with a toothed transferring wheel 4. The several wheels of each group may be rigidly fastened togetherlby means off-rivets 5, as shown most clearly in Fig. VI. All of these digit wheel groups are loosely mounted on a stationary shaft 6, and the wheels of each group may be rotated independently other groups.

Before pointing out the functions of the alining Wheels and the transferring wheels, We Will describe the means for transmitting rotary motion to the several digit wheel groups. This means comprises a series of intermediate transmission gears 7 loosely mounted on a stationary shaft 8, each of said transmission gears being in mesh with one of the .actuating wheels 2. A series of lower ing the hub 14 of the master wheel and slidably mounted on a horizontal rod 15 parallel with the master wheel shaft 13. This frame A is provided With a wheel 16 adapted to travel on a track 17. It is to be understood that the master wheel turns with the shaft 13 and that the master wheel carriage is advanced step by step for the purpose of shifting the master Wheel from one order to another, each order being represented by a transmission wheel 9 adapted to mesh with the master wheel. 18 designates a pointer secured to the master wheel carriage and extending over the top of the accumulator at a point adjacent to the digit wheel groups, so as to. indicate the location of the master wheel.

The means for shifting the master wheel carriage .comprises a restoring spring 19 l(Fig. III) tending'to-retain said carriage in the position shown by Fig. III, wherein a sleeve 20, forming part of the carriage, engages an abutment collar 21 adjustabl mounted on the rod 15. A rack bar 22, fixed to the master wheel carriage (Figs. I and III), meshes with a sector 23, the latter being fixed to a shaft 24. To actuate the shaft 24 for the purpose of imparting a step by step movement to the master wheel, any suitable mechanism may be employed; for example, the shaft 24 may be driven` with the platen carriage of the typewriter in a manner Well understood in this particular art. The patent to Tillman, 1,003,671, Sept. 19, 1911, shows a calculating attachmentl for whereina master wheel carriage located below the front of the typewriter is driven by the platen carriage, motion being transmitted ,from said platen carriageto said master wheel carriage so as to advance the master wheel one step in response to a corresponding movement of the platen carriage. The master Wheel is thus advanced along the accumulaof the Wheels in the-- typewriters tori and said master wheel travels step by step from one order to another while the platen carriage travels step by step to provide for the writing ofnumerals of different orders, or different values. For example, in writing the number 24, the 2 would be written while the master wheel is in the tens order, and the platen carriage and master wheel would then advance one step to locate the master wheel in the units order, which would enable the 4 to be written on the paper at the platen carriage and at the same time introduced into the units order in the accumulator. Since no invention is claimed for the specific means for feeding the master 80 wheel carriage, We do not deem it necessary to show all of the various details of construction whereby motion may be transmitted from the platen carriage to the master wheel carriage.

In Fig. I we have shown a portion of a typewriting machine provided with numeral key levers 25, each having an extension 26 connected at 27 to a lever 28. Each lever 28 is pivoted at 29 to a vertical rack bar 30, and each of said levers has a downwardly extending leg 31 mounted between the rods 32. Each rack bar 30 is thus connected-to one of the numeral keys of the typewriter, and the several rack bars are free to move vertically in response to corresponding movements ofthe numeral keys. Each rack bar 30 is adapted to mesh with a toothed counting wheel 31 fixed to a counting shaft 32 (Figs. I and III). In Figs. I and III 33 designates 100 a ratchet wheel loosely mounted on the shaft 32 and fixed to a transmission gear 34, the latter also being loosely mounted on said shaft. 35 designates a pawl pivoted to an arm 36, the latter being fixed to the shaft 32. 105

When a numeral key is depressed, its coinpanion rack bar 30 moves downwardly. thereby actuating a counting whecl31 and the shaft 32 so as to turn the pawl-carrying y -arm 36 about the axis ofl shaft 32, said arm 110 beingl fixed to the shaft. Motion is thus transmitted through the pawl 35 to the ratchet wheel 33 and thence to the transmission gear 34, which is fixed to said ratchet wheel. Duringthe upward stroke of the key, the rack bar 30 moves upwardly, thereby restoring the arm 36 and its pawl 35 to the positions shown in F ig. I. During this return movement of arm 36 the pawl 35 moves idly along the teeth of ratchet wheel 33. The pawl-carrying arm 36 oscillates in response to the key operations, but the transmission gear 34, fixed tothe ratchet wheel 33, turns in only one direction. In Fig. I

we have shown a rack bar 30 connected to the 125 6 key, and the rack teeth are so formed and arranged that the counting wheel shaft 32 will turn six steps in response to each operation of this key. The degree of movement imparted to the counting wheel sham will depend upon the value of the selected numeral key,.said shaft beingdriven only one step by the 17 key, two steps by the 2 key, etc. s

The means for transmitting movement from the counting shaft 32 to the master wheel (Figs. I and III) comprises the trans- -mission gear 34 loosely mounted on the shaft 32, a larger gear 37 meshing with said gear 34, a gear 38' meshing with the gear 37, and a gear 39 meshing with said gear 38, the gear 39 being fixed to the master wheel sha-ft 13. This train of gearing, driven through the medium of the transmission gear 34, is actuated in response Jto movement of the numeral keys, and the degree of movement transmitted therethrough will depend upon the value ofthe selected' numeral key. In Fig. I, .40 and 41 designate retaining pawls connected together by a tension spring 42 and coperating with the gear 37 to prevent retrograde movement. The-means for restoring the rack bars 30- (Fig. I) may include bell crank levers 43, each having an approxi# mately horizontal arm which extends-between two pins on the rack bar 30, Iand a depending arm to which a tensionfspring 44 is connected.

During each revolution of the wheels in a digit- Wheel group, the next adjacent group of higher order is advanced one step, this operation being performed while the grou of lower order is turning from the 9 position to the 0 position. Each intermediate transmission gear 7 (Figs. VII `and VIII) has ten ordinary gear teeth adapted to mesh with the actuating gear 2 in a digit wheel group. In addition to these ten ordinary teeth, each intermediate gear 7 (excepting the gearvin the highest order) has a laterally extended transferring tooth 45 adapted to Vmesh with the transferring wheel 4 in the next higher order. This feature is best illustrated by Figs. VI to VIII, wherein we have shown all Iof the wheels in the lOs order and a few of the wheels in the units order. During each revolution of the transmission. gear 7 in the units order, the transferring tooth 45 carried by said gear will mesh 'with and actuate the transferring wheel 4 in the 10s order. I'mmediately before and immediatelyvv after each transferring operation, the laterally extended transferring tooth 45 will lie in the ath of its companion transferrinv wheel 4. his feature is shown by Figs. VII and VIII, wherein the transferring tooth is located in the position it occupies immediately after a transferring operation. Itis also important to observe that the wheels in each digit wheel grou 3 must be free to be driven independently of the other groups. the parts occupy the positions shown by Figs.`VII and VII, the transferring tooth v45 in thel units order occupies an idle vposition in the path-of the transferring wheel' 4 l When for displacing the idle tooth 45 will be hereinafter pointed out, but it should now be understood that the .transferring tooth 45 in the units order (Figs. VII and VIII) must not lie in the path of the transferringwheel 4 in the tens order when movement is transmitted from the master wheel 12 (Fig. VIII) to the tens order. To more clearly understand this particular point, note that the function of each transferring tooth 45 is to transmit motion from a lower to a higher order; for example from the units order to the tens order, the wheels in the tens group being thus'advanced one step while the indicating wheel of the v units `group is turning from 9 to 0. A wheel'y path of a. transferring wheel 4 in the next higher order, as shown in Figs. VII and VIII, where the transferring tooth 45 in the units lorder lies in the path of the transferring Wheel 4 in the tens order.- It should now be understood that a transferring motion must not be transmitted backwardly from a higher to a lower order. Therefore, when the master wheel 12 meshes with the train of gearing in the tens orderl (Fig. VIII), it will be necessary to displace the transferring tooth 45 in the units order before-rotary motion is transmitted to the master wheel.` Whenever a transferringf tooth 45 occupies a position in the path of the transferring Wheel 4 in the next higher order, said tooth 45 should remain idle and erform no function while the train of gearing in the higher order is driven by the master wheel. Forthesel reasons, a wheel 7 is occasionally turned a slight distance, as will be presently described, for the 'purpose of displacingan idle transferring tooth 45 to a position beyond the path of the transferring wheel 4 in the next higherorder. To avoid the necessity of displacing the idle transferring tooth a very great distance, the external diameter' of the transferring `wheel 4 is relatively small,"and its relatively short gear teeth do not project` materially beyond the pitch circle of the transferring tooth 45. This also enables the transferring tooth to pass into and out of mesh with the transferring wheel 4.

The-means for displacing the idle transferring tooth 45 lcomprises an abutment tooth 46 projecting laterally yfrom the lower transmission gea-r 9, and a shifting device B carried by the master wheel carriage. Each transmission gear 9, excepting the one in the highest order, is provided with an abutment tooth 46.- The laterally projecting teeth 45 and 46 maybe secured to the wheels 7 and 9 respectively by meansfof rivets shown in Fig. VII. The shifting device B comprises a pair of arms 47 pivotally connected at 48 to the 'master wheel carriage. These arms 47 may be made almost exactly alike, and they are adapted to open and close like the blades cfa pair of scissors, as suggested by dotted lines in F VII, each arm 47 being movable about the axis of pivot 48. Fingers 49, projecting forwardly from the front ends of arms 47, are alined with each other when said arms occupy the position shown by full lines in Fig. VII, and these lingers may be moved away from each other to the positions shown by dotted lines.

Immediately after a transferring operation, the transferring'tooth 45 occupies the position shown in Figs. VII and V III and its companion abutment tooth 46 also occupies the position shown in these views. Immediately before a transferring operation, the abutment tooth 46 lies directly above the fingers 49 while the transferring tooth 45 occupies a position one step to the right from i that shown in Fig. VII. When the transferring tooth 45 occupies either the position shown in Fig. VII or a position one step to the right, it lies in the path of the transferring wheel 4 in the next higher order, and it should be displaced to permit independent movement of the wheels in the higher order.

As will be hereinafter described, this is accomplished by actuating the shifter arms 47 immediately beforel transmitting rotary movement to the master wheel.

When the master wheel 12 meshes with one of the lower transmission gears 9, the shifter fingers 49 lie in the path of the abut* ment tooth 46 in the next lower order. This is illustrated by Fig. VIII wherein the master wheel 12 is alined with the transmission gear 9 in the lOs order, while the shifter fingers 49 (Figs. VII and VIII) lie in the path of the abutment tooth 46 in thev units order. The master wheel rotates in response to` downward movements of the numeral keys, but before rotary movement is imparted to the master. wheel the shifter ngers49 are moved to the positionsvv shown by dotted lines in Fig. VII, and if an abutment tooth 46 lies either immediately below or immediately above said fingers, the gear 9 will be displaced circumferentially, and a corresponding movement will be transmit ted to the gear 7 rovided with theltransferring tooth 45. he transferring tooth is thus displaced to av position beyond its companion transferring wheel 4. If the abutment tooth 46 does not occupy a position adjacent to the shifter fingers 49, said fingers will move idly without transmitting move- -ment to the gear 9. The shifter fingers, traveling with the master wheel, are thus actuated at the beginning of each key operation, and upon the completion of the downward stroke of the key said fingers are restored aild permitted to advance with the master w ee The means for transmitting movement to the pivotally supported shifter comprises long arms 50, extending rearwardly from the shifter arms 47 and diverging from each other at their rear ends, as shown in Fig. I. A restoring spring 51 (Fig: I), connecting the diverging ends of arms 50, tends to retain one o f said arms in engagement with a stop pin 52 carried by the other arm. This restoring spring 51 tends to retain theshifter arms in the positions shown by full lines in the drawings. The scissors-like shifter is opened through the medium of a long horizontal rod 53 (Figs. I and III) mounted between the diverging ends of arms 50, and fixed to the upper ends of rocker arms 54, the latter being fixed to a rock shaft 55. One of the arms 54 forms part of a bell crank lever having an arm 56 and provided with a pin 57, which overlies the front end of a long lever 58, said lever being pivoted at 59. A tension spring 60 (Fig. I), connected to one of the arms 54, and also to a stationary part of the machine, tends to retain the lever arm 56 in engagement with a stationary stop pin 6l. A relatively light spring 62 (Fig. I) tends to retain the lever 58 in engagement with the pin 57. A longrod 63 (Figs. I and III), located immediately below allof the vertical rack bars 30, is connected to a pair of rocker arms 64 fixed to a rock shaft 65. Restoring springs 66, connected to arms 64, yieldingly retain the long rod 63 in its elevated position. One of the rocker arms 64 has a depending arm 67 provided at its lower end with a cam F, which coperates with a lateral projection 68 at the rear end of the long lever 58. The cam and projection are shown in Figs. I, II and III. When any one of the numeral keys is depressed, one of the vertical rack bars 30 moves downwardly so as to impart a corresponding lmovement to the long horizontal rod 63 which lies below all of the rack bars. The cam F is thus shifted rearwardly at the beginning of each key operation, for the purpose of actuating the shifter B. At the` beginning of this rearward movement, the inclined face 69 on the cam F rides over the projection 68, thereby depressing the rear end of lever 58 and elevating the front end thereof. Motion is transmitted from the lever 58 (Fig. I) through the pin 57, arms 56 and 54, to the long horizontal rod 53 which lies between the diverging ends of cam F passes from the projection 68. In

Y other words, the shifter remains open until theY key has almost completed its downward stroke, and it is then closed by the restoring spring 51 (Fig. I), the arms 54 and 56 being restored by the spring 60. At this time the key is in its lowermost position, and the cam F occupies a position at the rear of the projection 68, as shown by dotted lines in Fig. II. During the upward stroke of the key, the cam F moves forwardly, its top face passing under the projection 68 so as to impart an idle movement to the lever 58. At this time the light spring 62 (Fig. I) is placed under tension and the lever` 58 moves idly from the pin 57, the arm 56 being engaged with the stationary stop pin 61. Upon the completion of the upward stroke of the key, the top face of the cam F passes from the projection 68, and the spring 62 then restores the lever 58 to the positlon shown by Fig. I.

From the foregoing it will be understood that the shifter is actuated before rotary movement is imparted to the master wheel,

, and that the shifter is not restored until the master wheel has completed its rotary movement. The teeth on each rack bar 30 (Fig. I) normally lie above the teeth onthe adjacent counting wheel 31 (Fig. I), so that the shifter may be actuated at the beginning of a key stroke, before motion is transmitted from the rack bar to the counting wheel. The horizontal rod 53 (Figs. I and III), located between the diverging ends of arms 50, is long enough to permit the shifter to travel with the master wheel, and when in any of its several positions, the shifter may be actuated by transmitting movement through this long rod 53.-

VVe will now describe the means. for locking land alining the accumulator gearing. This means also serves to restore the gearing to proper alinement, after it has been d isplaced by the shifter. 7() designates alining disks and 71 designates toothed retaining wheels, each of which is fixed to one of the alining disks. The peripheral face of each alining disk 7 0 coperates with the teeth of the alining wheel 3 in one of the digit wheel groups, while the adjacent retaining' wheel 71 meshes with the actuating wheel 2 in the next lower order. This is shown most clearly in Figs. VI and VII, the alining disk being engaged with the alining wheel 3- ing dog being pivoted on a stationary rod 78 and provided with a shoulder 79 adapted to coperatie with the lower end of the lever 73. 80 designates restoring springs tending to retain the locking dogs 77 in their operative positions.

The means for unlocking the dogs 77 comprises a single unlocking lever 814pivotally connected to the master wheel carriage by means of -a screw 82. The unlocking lever 81 travels with the master wheel carriage and it has an upwardly extending finger 83 which engages a finger 84 depending from one of the shifter arms 47 The unlocking lever 81 also has a forwardly extending finger 85 (Fig. VII) adapted to travel horizontally in a plane below the locking dogs 77. 86' designates a restoring spring tending to retain the unlocking lever in engagement with a stationary stop pin 87.

When an alining disk 70 occupies the position shown by Fig. VII, a portion of its periphery lies between two teeth on an alining wheel- 3, and if the disk is positively held in this position it will prevent rotation of the adjacent digit wheel group. The selected digit wheel is therefore unlocked by moving the dog 77 associated with the selected digit wheel group, and this is accomplished through the medium of the unlocking lever 81 actuated by the shifter B. When l the machine is not in service, all of the digit wheel 'groups are locked by the dogs 77 which cooperate with the yieldingly mounted levers 73 t0 retain the disks in engagement with the toothed alining wheels 3. Immediately before rotation is imparted to the master wheel, the selected digit wheel group is unlocked by operating the unlocking lever 81, thereby moving one of the locking dogs 77 to the position shown by dotted lines in Fig. VII. This unlocks the yieldingly mounted lever 73 in the selected order, it being understood that the unlocking lever 81 travels with the master wheel so as to act upon the locking dog 77 in the order with which the master wheel is alined. The unlocking lever 81 is operated through the medium of the linger 84 (Fig. VII) depending from one of the shifter arms 47. Therefore, the selected digit wheel group is unlocked immediately before rotary movement is transmitted to the master wheel, and the locking means is not restored until released by the depending finger 84. Since this finger alining wheel 3, acting upon the periphery of disk 70, overcomes the force of spring 75 at the lower end of lever 73. The disk 70, acting like a spring pressed detent, remains in engagement with the rotating wheel 3. but

it vibrates about the axis of lever 73. Upon the completion of the rotary movement, the disk coperates with the alining wheel 3 to lock the digit wheel group and to aline the gearing associated therewith.

To provide for the transmission of rotary movement to the selected digit wheel group, only one of the levers 73 is unlocked, but in transferring from one order to another, two digit wheel groups are driven at the same time. During the transferring period the transferring tooth 45 (Figs. VII and VIII) in the lower order transmits movement through the transferring wheel 4 in the higher order. The gearing in the lower order is driven directly by the master wheel, and the aliningdisk in this order is unlocked. The gearing in the higher order is turned one step without unlocking its companion lever 73. To accomplish this each alining disk 70 has a peripheral transferring notch 88 (Fig. VII) adapted to receive a tooth in the adjacent alining wheel 3, and this notch allows the digit wheel group to advance one step.

In this connection it is important to observe that the transferring notch 88 in the higher order must bear a fixed relation to the transferring tooth 45, in the next lower order. When the transferring tooth 45 is positioned to actuate the wheel 4 of higher order, the companion notch 88 must be p0- sitioned to receive a tooth on the 'adjacent alining wheel 3 in said higher order. Otherwise, the notch 88 would not permit movement of the wheels in the higher order.

Therefore, the disk 70 coperates with a toothed wheel 3 in the higher order while the retaining wheel 71, fixed to said disk, meshes with the actuating wheel 2 in the next lower order. A fixed relation between the transferring notch 88 in the higher order and the transferring tooth 45 in the lower order is thus established and maintained. Each disk 70 is at times unlocked and vibrated, as previously pointed out, by the rotary movements of its companion alining wheel 3, but this does not disengage the retaining wheel 71 from the actuating wheel 2 in the lower order. The retaining wheel 71 is never permitted to rotate independently of the actuating wheel 2 in the relatively low order,

and since the disk 70 is fixed to said wheel 71, the disk will turn in unison with the transferring tooth 45 in the lower order, and during the transferring period the notch 88 will be properly positioned to receive a tooth on the adjacent wheel 3.

Under some conditions which have been previously pointed out, a transferring tooth 45 will be displaced from an idle position, as suggested by dotted lines in Fig. VII, this being accomplished by the shifter B acting upon an abutment tooth 46 on a transmission gear 9. An entire train of gearing is thus slightly displaced, and when the shifter is restored a spring 75 coperates with a lever 73 and disk 70 to restore the displaced gearing. To permit this slight displacement (Fig. VII) the lower end of lever 73 may be separated a slight distance from the adjacent shoulder 79 on the locking dog 77.

When the typewriter is used to print a number having several digits, such as $24,365.29, it is desirable to print a comma and a decimal point between certain digits, as suggested in this example. If the master wheel advances in unison with the platen carriage of the typewriter, it will be necessary for the master wheel to travel idly while the typewriter keys are operated to print the comma and decimal point. To provide the necessary gaps or spaces in the accumulator (Fig. V), certain companion wheels 1 and 3 are separated from each other and rigidly connected together by means of sleeves 90. Some of the abutment teeth 46 are accordingly elongated to properly coperate with the shifter which travels with the master wheel.

We claim:

1. In a calculating machine, an accumulator provided with digit wheels of different orders, transferring means whereby motion is transmitted from one order to another, said transferring means comprising two transferring members one of which is driven by the other, one of said transferring members being adapted to occupy an idle position in the path of the other transferring member, and means whereby the idle transferring member is displaced to permit independent movement of the other transferring member.

2. In a calculating machine, an accumulator provided with digit wheels of different orders, transferring means whereby motion is' transmitted from one order to another. said transferring means comprising a driver and a driven member actuated thereby, said driver being adapted to occupy an idle position in the path of the driven member, and means for displacing said driver from said idle position to permit movement of said driven member.

3. In a calculating machine, an accumu- 30 'independent rotation of said driven member.

lator provided with digit wheels of different orders, transferring means whereby motion is transmitted from one order to another, said transferring means comprising rotary transferring members one of which is driven by the other, said rotary transferring members being movable independently of each other and one of said rotary transferring members being adapted to occupy an idle position in the .path of the other transferring member, and means whereby the idle transferring member is displaced to permit independent rotation of the other transferring member.

4. In a calculating machine, an accumulator provided with digit wheels of different orders, transferring devices whereby motion is transmitted from one order to another, said transferring devices including a rotary drive member moving with the digit wheel of one order and a rotary driven member moving with the digit wheel of next higher order, said driven member being actuated by said drive member to provide for the transfer from one order to another, said rotary drive member being adapted to occupy an idle position in the path of said driven member, and means whereby said rotary drive member is turned slightly and thereby displaced from said idle position to permit 5. In a calculating machine, an accumulator provided with digit wheels of different orders, transferring devices whereby motion is transmitted from one order to another, said transferring devices including a rotary drive membermoving with the digit wheel of one order and provided with a transferring tooth for the transmission of movement to the next higher order and a rotary driven gear wheel moving with` kthe digit wheel in said next higher order and having teeth adapted to mesh with said transferring tooth in the adjacent lower order, said driven gear and transferring tooth being revoluble independently of each other to provide for the independent rotation of their companiong digit wheels, and said transferring tooth being adapted' to occupy an idle position in the path of said driven gear, andmeans whereby said rotary drive member and the transferring tooth are shifted on their axis and thus displaced from said idle position to permit independent rotation of the driven gear and its companion digit wheel.

6. In a calculating machine, an accumu` latorprovided with digit wheels of different orders, transferring devices whereby motion is transmitted from one order to another, said transferring devices including a rotary driven gearwheel moving with the digit wheel of one order and a rotary drive wheel moving with the digit wheel of the next lower order, said rotary drive wheel having a laterally extended transferring tooth -adapted to mesh with said driven gear wheel, the external diameter of said driven gear wheel being relatively small so that the outer ends of the gear teeth will not project materially beyond the pitch circle of said transferring tooth, said rotary drive wheel and its laterally extended transferring tooth being rotatable independently of said driven gear wheel, and said transferring tooth being adapted to occupy an idle position in the path of the outer ends of said gear teeth, and means whereby said rotary drive wheel and its transferring tooth are displaced from said idle position to permit independent rotation of said rotary driven gear wheel and its companion digit wheel.

7.'In a calculatingmachine, an accumulator provided with digit wheels of different orders, transferring means whereby motion is transmitted from one order to another, said transferring means comprising two transferring members one of which is driven by the other, one of said transferring members being adapted to occupy an idle position in the path of the other transferring member, means whereby the idle transferring member is displaced to permit independent movement of the other transferring member, and i means for restoring the displaced transferring member.

S. In a calculating machine, an accumulator provided with digit wheels of different orders,transferring means whereby motion is transmitted from one order to another, said transferring means comprising two transferring members one of which is driven by the other, one of said transferring members being adapted to'occupy an idle position in the path of the other transferring member, means whereby the idle transferring member is displaced to permit independent movement of the other transferring member, and spring actuated means tending to restore the displaced transferring member.

9.'In a calculating machine, an accumulator provided with digit wheels of different orders, transferring devices whereby motion is transmitted from one order to another, said' transferring devices including a rotary drive member moving with the digit wheel of one order and provided with a transferring tooth for the transmission of movement to the next higher order and a rotary driven gear wheel moving with the digit wheel in said next higher order and having teeth adapted to meshxwith said transferring tooth in the adjacent lower order, said driven gear andA transferring tooth being revoluble independently of each ther to provide for the independent rotation of their companion digit wheels, and said transferring tooth being adapted to occupy an idle position in the path of said vdriven gear, means whereby said lab' l placed from said idle position to permit independent rotation of the driven gear and its companion digit wheel, and spring actuated alining means coperating with said rotary drive member to restore the displaced ytransferring tooth.

10. In a calculating machine, an accumulator provided with digit wheels of different orders, transferring means whereby motion is transmitted from one order to another, said transferring means comprising two transferring members one of which is driven by the other, one of said transferring members being adapted to occupy an idle position in the path of the other transferring member, numeral keys, means under the control of said numeral keys for imparting rotary movements to said digit wheels, and means under the control of said numeral keys whereby the idle transferring member'is displaced` immediately before rotary movement is transmitted to a selected digit wheel.

11. In a calculatingmachine, an accumulator provided with digit wheels of different orders, transferring means whereby motion is transmitted from one order to another, said transferring means comprising two transferring members one of which is driven by the other, one of said transferring members being adapted lto occupy an idle' posiltion in the path of the other transferring member, numeral keys, means under the control of said numeral keys for imparting rotary movements to said digit wheels, and a shifter whereby the idle transferring member is turned and thereby displaced from said idle position to permit independent movement of the other transferring' member, said shifter being actuated by the numeral keys so as to turn said idle transferring member before rotary motion is transmitted to the selected digitv wheel.

12. In a calculating machine, an accumulator provided with digit wheels of different order, transferring means whereby motion is transmitted from one order to another, said transferring means comprising a driver and a driven member actuated thereby, said driver being adapted to occupy an idle position in the path of the driven member, and keys and key controlled devices whereby said driver `and the selected digit wheel are actuated successively so as to displace the driver from said idle position before transmitting movement to the digit wheel. C

13. In a calculating machine, an accumulator provided with digit wheels of different orders, transferring means whereby motion is transmitted from one order to another, said transferring means comprising two transferring members one of which is driven by the, other, one of said transferring mem.- bers being adapted to occupy an idle position in the path of the other transferring member, said accumulator also having rotary transmission gears corresponding to the different orders, a rotary master wheel through which motion is transmitted to the diffe-rent transmission gears and a traveling carriage movable step by step to provide for the transmission of movement from the masterY wheel to the different transmission gears, one of the transmission gears in each order being provided with an abutment tooth, a shifter registering with the abutment tooth in one order when the master wheel registers with a. transmission gear in the next higher order, the idle transferring member being movable in response to movements of said abutment tooth', and means for actuating said shifter to displace said abutment tooth.

14. In a calculating machine, an accumulator provided with digit wheels of different orders, rotary transmission gears corresponding to thediiferent orders, a rotary master wheel through which motion is transmitted to the different transmission gears', a traveling carriage movable step by step to provide for the registration of the master wheel with the different transmission gears, transferring means comprising a transferring tooth movable with a transmission gear in one order andatransferring wheel in the next higher order, said transferring tooth being adapted to actuate said transferring wheel, and said transferring tooth being adapted to occupy an idle position in the path of said transferring wheel, and means whereby the idle transferring tooth is displaced to permit independent move-ment of said transferring wheel, the last mentioned means comprising an abutment tooth carried by the transmission gear corresponding to the order of the transferring tooth and a shifter whereby said abutment tooth is displaced circumferentially so as to effect a circumferential dis.- placement of the idle' transferrin tooth, said master wheel being in registration with the transmission gear of one order while the shifter registers with the abutment tooth in the next lower order.

15. In a calculating machine, an accumulator provided-with digit wheels of different orders, rotary transmission gears corresponding to the different orders, a rotary master wheel through which motion is transmitted to the different transmission gears, a traveling carriage movable step by step to provide for the registration of the master wheel with the different transmission gears, transferring means comprising a transferring tooth movable with a transmission gear in one order and a transferring wheel in the next higher order, said transferring tooth being adapted to actuate said transferring wheel, and said transferring tooth being adapted to occupy an idle osition in the path of said transferring wfieel, and means whereby the idle transferring tooth is displaced to permit independent movement of said transferring i.'

wheel, the last mentioned means comprising an abutment tooth carried by the transmission gear corresponding to the order of the transferring tooth and a shifter whereby said abutment tooth is displaced circumferentially so as to effect a circumferentialdisplacement of the idle transferring tooth, said master wheel being in registration with the transmission gear of one order while the shifter registers with the abutment toothin the next lower order, and key controlled devices whereby the shifter is actuated to displace said abutment tooth.

16. In a calculating machine, an accumulator provided'with digit .wheels of different orders, rotary transmission gears corresponding to the different orders, a rotary master wheel through which motion is transmitted to the different transmission gears, a traveling carriage movable step by step to provide for the registration of the master wheel with the different transmission gears, transferring means comprising a transferring tooth movable with a transmission gear in one order and a transferring-wheel in the next higher order, said transferring tooth being adapted to actuate said transferring wheel, and said transferring tooth being adapted to occupy an idle position in the path of said transferring wheel, and means whereby the idle transferring tooth is displaced to permit independent movement of said transferring wheel, the last mentioned means comprising an abutment toothcarried by the transmission lgear corresponding to the orderkof the'transferring tooth, a shifter including two thrust members movablerin opposite directions to displace said abutment tooth when theA latter' occupies either of two positions, numeral keys land means for transmitting movement from said keys to said shifter. y

17. In a calculating machine, an accumulator provided with digit wheels of different orders, transferring means whereby motion is transmitted from one order to another, said transferring means comprising a driver and a driven member actuated thereby, said driver being adaptedtooccupy an idle position in the path of the driven,y member, a master wheel whereby said digit wheels and transferring means are actuated, a traveling vcarriage whereby said master wheel is shifted from one order to another, numeralke'ys imparting rotary movements ,to said master wheel, a shifter for displacing said driver from said idle position to permitmovement of said driven member, said shifter` being carried by said traveling carriage and so ositioned thereon as to act upon the driver 1n the lower order next to the master wheel, an elongated actuating member for transmitting movement to the traveling shifter, numeral keys for the transmission of rotary movements to said master wheel, and means A toothed retainin liderI the control of said numeral keys alining wheels each moving with one of the digit wheels, yieldingly mounted alining disks cooperating with the teeth of said alining wheels, each of said alining disks having a transfer notch adapted to receive a tooth on its companion alining wheel, individual locking devices whereby the yieldingly mounted alining disks are normally held in fixed positions to prevent rotation of the toothed alining wheels, means for unlocking said individual locking devices to permit rotation of selected digit wheels, and toothed retaining wheels each driven with the driven wheel of one order and fixed to t the alining disk in the next higher order, so

as to pre-vent rotary displacement of the notched alining disk relative to the transfer element in the next lower order.

19. In a calculatin machine, an accumulator provided with digit wheels of different orders, toothed transfer wheels each movable with one of the digit wheels, toothed alining wheels each moving with one of the digit wheels, yieldingl mounted alining disks cooperating with t e teeth of vsaid alining wheels, each of said alining disks having a transfer notch adapted to receive a tooth on its companion allning wheel, individual locking devices whereby the' yieldingly mounted aliningl disks are normallyl .held in fixed positions to prevent rotation of the toothed alining wheels, means for unlocking said individual locking devices to permit rotation of selected digit wheels; and p wheels each driven with the driven whee of one order and fixed to the alining disk in the next higher order, so as to prevent rotaryv displacement of the notched alining disk relative to the transfer element in the next lower order, said toothed retainin wheels being yieldable with their companion alining disks solas to permit the 115 teeth of the unlocked alining wheel to overcome the force of the yieldingly mounted alining disk 20. In a calculating machine, an accumulator having digit wheel groups of different 120 orders, eac of said groups comprisin an indicating wheel, a toothed rtransfer w eel,

.a toothed alining wheel, and a toothed drive having a peripheral transfer notch adapted to receive a tooth on its companion alining wheel, individual locking devices whereby the yieldingly mounted alining 4disks are normally held in fixed positions to prevent rotation of the toothed alining Wheels, means for unlocking said individual 'locking devices to permit independent rotation of selected digit Wheel groups, toothed retaining wheels each meshing With a toothed Wheel in one digitwvheel group and fixed to the alining disk in the next higher order, so as to prevent rotary displacement of the notched alining disk relative to the transfer element in the next lower order, said toothed retaining Wheels being yieldable With their companion alining disks so as to permit the teeth of the unlocked alining Wheel to overcome the force of the yieldingly mounted alining disk.

In testimony that we claim the foregoing we hereunto affix our signatures.

EDWARD C. SCHINKE. NORMAN A. SUTHERLAND. 

